Grinding or polishing element has body, rim and grinding ring with 3-D structure alternately connected between its two surfaces comprising sets of adjacent teeth

摘要

Grinding element has body (1) with rim (2) and grinding ring (3). Ring between its two side surfaces carries a single-part continual three-dimensional (3-D) structure (32). The first side forms several spaced teeth (321) and second side forms several spaced teeth set opposite the first teeth. The 3-D structure is alternately connected to the first and second teeth, whereby each first teeth foundation (322) formed between two adjacent first teeth and each second teeth foundation (332) between two adjacent second teeth oversteps a middle line (30) between the first side and second side.